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Finding the Fourth Proportional to 611,146.17, 843,369.03 and 339,198.12

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Solution

The fourth proportional to 611,146.17, 843,369.03 and 339,198.12 is: 468,086.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,146.17 : 843,369.03 = 339,198.12 : x
  2. Step 2: Convert to fraction form
    611,146.17/843,369.03 = 339,198.12/x
  3. Step 3: Cross multiply
    611,146.17x = 843,369.03 × 339,198.12
  4. Step 4: Simplify right side
    611,146.17x = 286,069,189,442.22
  5. Step 5: Solve for x
    x = 286,069,189,442.22/611,146.17
  6. Step 6: Final answer
    x = 468,086.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.